Magnet for organs



May 9, 1939. D, R 2,158,01G

MAGNET FOR ORGANS Filed Jan. 24, 1938 INVENTOR ATTORNEYS Patented May 9, 1939 2 158 10 UNITED STATES PATENT OFFICE MAGNET FOR ORGANS David Marr, Warsaw, N. Y.

Application January 24, 1938, Serial No. 186,687

1 Claim. (01. 175345) This invention relates to magnets for organs with the opening i5, which supplies air from the and has for an object to provide a magnet of this Wind chest to the respective pipe through the character wherein the armature may be removed port l2. The casing collects dust and dirt. The by a straight downward pull. casing is provided in one side with a port I 6 which A further object is to provide an electro -magis controlled by a valve having a stem It extendnet for organ actions adapted to be responsive to ing parallel with the casing l4. relatively weak currents for opening the valve The valve stem 48 is secured to an armature l9 against usual air pressure. which extends longitudinally of the electro-mag- A further object is to provide a device of this net l3 and is provided with an arcuate free end 20 character which. will be formed of a few strong arranged concentric with a pivot pin 2! of the 10 simple and durable parts, which will be inexpenarmature so as to travel across the beveled end sive to manufacture, and which will not easily get 22 of the electro-magnet core 23. out of order. As best shown in Figure 3, the hinge plate 24 With the above and other objects in view the may be formed of a single blank of metal having invention consists of certain novel details of conone end provided with a longitudinal slot 25 and 15 struction and combinations of parts hereinafter having the ends on each side of the slot deformed fully described and claimed, it being understood to provide hinge eyes 25 which receive the above that various modifications may be resorted to mentioned pivot pin 2!. However, the hinge plate within the scope of the appended claim without may be formed of two identical blanks 2'5, as departing from the spirit or sacrificing any of the best shown in Figure 6, the blanks having half- 20 advantages of the invention. round complementary ends 28 which form the In the accompanying drawing forming part of eyes. The hinge plate is secured to the bottom of this specification, the casing I l by screws 29 or other connectors. Figure 1 is a cross sectional view through an By referring to Figure 4 it will be seen that the g5 organ wind chest and showing a magnet coil, armature i9 is provided at the upper end with a armature and valve constructed in accordance slot 3!] and on each side of the slot the upper end with the invention. of the armature is grooved as shown at 3!, these Figure 2 is a longitudinal sectional view through grooves being disposed in alignmentto embrace the armature and hinge and showing the pin one side of the pivot pin 2!. A leaf spring 32 is 30 from which the armature and valve may be desecured at the lower end to the armature and 30 tached by straight line downward pull. the upper end of the leaf spring projects over the Figure 3 is a plan view of the parts shown in slot 31! and presses against the opposite side of Figure 2. the pivot pin 2! Thus by straight line downward Figure 4 is a detail perspective View of the armovement the armature may be detached from mature and leaf spring for yieldably holding the the pivot pin to promote inspection and repairs. 35 armature in place. No screws or other connectors are required to piv- Figure 5 is a cross sectional view through the otally and detachably ll t t e armature in wind chest of an organ showing a modified form p The armature y be ecured o the Valve of armature, the same carrying the valve parallel stern i8 in any preferred manner.

with the armature instead of in alignment with A l f spring 8 bears wi its w r end a in t 40 the armature shown in Figure 1. the armature E8 to hold the armature in neutral Figure 6 is a side elevation of a modified form position. The leaf spring is provided with a coil of hinge for the armature. 35 near the upper end and at the upper end is Referring now to the drawing in which like bent at a right angle and s u d to t e hinge 43 characters of reference designate similar parts pla e M in y preferred e 45 in the various views, H! designates a wind chest When the coil of the electro-magnet is enerfor holding a series of valve actions adapted to giZed the armature W111 attracted y e control the flow of air to the pipes ll. These C 23 and $00k the Valve H pen- UDOn the pipes are mounted at their lower ends on the wind magnet becoming de-energized the leaf spring 34 m Chest and are provided with ports :2 for c0nductwill immediately return the armature to neutral ing air to respective pipes. position and close the valve H.

In one embodiment of the invention I provide A fl fie form o e v tion is shown in an electro-rnagnet l3 for each pipe, the electro- Figure 5. In this modified form of the invention magnet being secured to the bottom of a casing all of the parts above described are the same as M which is open at the top and communicates the parts described in Figure 1 with the exception 5 that the valve 36 is provided with a stem 3'! of right angular contour, the free end of which is secured to the armature IQ of the electro-magnet #3. In this modified form of the invention the dust collector I4 is dispensed with and the hinge plate 24 is secured direct to the underneath face of the top of the wind chest by the screws 29.

From the above description it is thought that the construction and operation of the invention will be fullyunderstood Withoutfurther explanation.

What is claimed is:

The combination of an electro-magnet, a hinge plate for mounting the magnet having spaced hinge eyes in the free end, a pivot pin in said hinge eyes, an armature for the electro-magnet having spaced projections at one end provided With grooves receiving one side of said pivot pin, and a spring on the armature bearing against the other side of said pin to permit of the armature being detached by straight line movement longitudinally of the electro-magnet.

DAVID MARE. 

